Method flip

Lib/idlelib/tree.py:145–151

(self, event=None)

            child.deselecttree()

    def flip(self, event=None):
        if self.state == 'expanded':
            self.collapse()
        else:
            self.expand()
        self.item.OnDoubleClick()
        return "break"

    def expand(self, event=None):
        if not self.item._IsExpandable():